Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The design and synthesis of photoactive metal-free 2D materials for selective heterogeneous photoredox catalysis continue to be challenging due to issues related to nonrecyclability, and limited photo- and chemical stability. Herein, we report the photocatalytic properties of a triazine-based porous COF, , which is found to be capable of facilitating both SET (single electron transfer) for photocatalytic reductive debromination of phenacyl bromide in absence of oxygen and generation of reactive oxygen species (ROS) for benzylamine photo-oxidation in the presence of oxygen, respectively, under visible light irradiation. Inspired by the latter results, we further systematically investigated different-sized benzylamine substrates in this single-component reaction and compared the results with an analogous COF () exhibiting a larger pore size. We observed a marked improvement in the conversion of larger-sized substrates with the latter COF, thereby demonstrating angstrom-level pore size-selective photocatalytic activity of COFs.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11656359 | PMC |
| http://dx.doi.org/10.1021/acsomega.4c06171 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Structure, function and assembly of nuclear pore complexes.
Nat Rev Mol Cell Biol
September 2025
Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, USA.
The defining property of eukaryotic cells is the storage of heritable genetic material in a nuclear compartment. For eukaryotic cells to carry out the myriad biochemical processes necessary for their function, macromolecules must be efficiently exchanged between the nucleus and cytoplasm. The nuclear pore complex (NPC) - which is a massive assembly of ~35 different proteins present in multiple copies totalling ~1,000 protein subunits and architecturally conserved across eukaryotes - establishes a size-selective channel for regulated bidirectional transport of folded macromolecules and macromolecular assemblies across the nuclear envelope.
View Article and Find Full Text PDFSize-Selective Nanoporous Atomically Thin Graphene Separators for Lithium-Sulfur Batteries.
ACS Appl Mater Interfaces
September 2025
Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611, United States.
Lithium-sulfur batteries (LSBs) are extensively researched for their high energy densities but are hindered by the lithium polysulfide (LiPS) shuttling effect, which results in poor cyclability. A popular mitigation strategy is separator modification, where a LiPS trapping material is slurry-coated onto a conventional microporous polypropylene (PP) separator. This additional mass and volume unfortunately compromise the overall energy density of the LSB.
View Article and Find Full Text PDFDimension-Tunable Supramolecular Organic Frameworks with Chiral Pore Channels for Selective Guest Encapsulation and Enhanced Circularly Polarized Luminescence.
J Am Chem Soc
August 2025
CAS Key Laboratory of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, No. 2 North First Street, Zhongguancun, Beijing 100190, China.
Here, we report a dimension-tunable supramolecular organic framework (SOF) with chiral pore channels, which shows selective guest encapsulation and enhanced circularly polarized luminescence (CPL). SOFs from a chiral para-substituted bis-naphthalene bis-urea (PNU) are fabricated by both vapor diffusion crystallization and an antisolvent self-assembly approach, leading to the formation of one-dimensional (1D) micrometer-sized single crystal and two-dimensional (2D) plate-like and three-dimensional (3D) octahedral self-assembled microstructures, respectively. The similar permanent porosity of these dimension-tunable chiral SOFs is collectively proved by N adsorption-desorption experiments, single-crystal structure, high-resolution transmission electron microscopy (HR-TEM), and density functional theory (DFT) calculations.
View Article and Find Full Text PDFSize-Selective Functionalization of Sugars and Polyols Using Zeolites for Renewable Surfactant Production.
Angew Chem Int Ed Engl
August 2025
Laboratory of Sustainable and Catalytic Processing, Institute of Chemicals Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland.
Diol functionalization with acetals in carbohydrates and polyols is ubiquitously used in protection chemistry and in the manufacture of several platform chemicals. However, the selective functionalization of molecules where multiple acetalization reactions can occur typically involves multiple protection/deprotection steps. Here, we show that zeolites can be used to size-selectively acetalize sugars and polyols in a single step, and we demonstrate the potential of this approach for producing functional chemicals and materials.
View Article and Find Full Text PDFSelective H Gas Sensing Using ZIF-71/In-SnO Bilayer Sensors: A Size-Selective Molecular Sieving Approach.
ACS Sens
August 2025
Paderborn University, Faculty of Science, Department of Chemistry, Warburger Str. 100, Paderborn 33098, Germany.
A universal method for creating selective hydrogen (H) gas sensors through the integration of microporous zeolitic imidazolate framework (ZIF) filter layers on metal oxide sensing layers is presented. The sensor design consists of an indium-modified tin oxide (In-SnO) layer as the gas-sensitive component, topped by a size-selective ZIF filter layer. The ZIF layer is generated by first depositing zinc oxide (ZnO) of variable thickness (20-48 nm) onto the In-SnO layer, followed by in situ conversion to either ZIF-8 or ZIF-71 through solvothermal methods.
View Article and Find Full Text PDF